Dont abort when driver doesn't support debug utils

A recent change made it so that when either vkDebugMarkerSetObjectTagEXT,
vkDebugMarkerSetObjectNameEXT, vkSetDebugUtilsObjectNameEXT, or
vkSetDebugUtilsObjectTagEXT is called, if a driver doesn't support any
of those functions the loader would abort. This is incorrect because drivers
may not support the debug utils extension while the loader & layers might.
Now the loader only aborts if the Device handle is invalid, and simply
returns VK_SUCCESS if a driver doesn't support those functions.

2 files changed, 24 insertions, 5 deletions

diff --git a/loader/generated/vk_loader_extensions.c b/loader/generated/vk_loader_extensions.c
index 9ae9350cf..211bf082a 100644
--- a/loader/generated/vk_loader_extensions.c
+++ b/loader/generated/vk_loader_extensions.c
@@ -3950,7 +3950,7 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_DebugMarkerSetObjectTagEXT(
     uint32_t icd_index = 0;
     struct loader_device *dev;
     struct loader_icd_term *icd_term = loader_get_icd_and_device(device, &dev, &icd_index);
-    if (NULL == icd_term || NULL == dev || NULL == dev->loader_dispatch.extension_terminator_dispatch.DebugMarkerSetObjectTagEXT) {
+    if (NULL == icd_term || NULL == dev) {
         loader_log(NULL, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_VALIDATION_BIT, 0, "DebugMarkerSetObjectTagEXT: Invalid device handle");
         abort(); /* Intentionally fail so user can correct issue. */
     }
@@ -3969,6 +3969,10 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_DebugMarkerSetObjectTagEXT(
             }
         }
     }
+    // Exit early if the driver does not support the function - this can happen as a layer or the loader itself supports
+    // debug utils but the driver does not.
+    if (NULL == dev->loader_dispatch.extension_terminator_dispatch.DebugMarkerSetObjectTagEXT)
+        return VK_SUCCESS;
     return dev->loader_dispatch.extension_terminator_dispatch.DebugMarkerSetObjectTagEXT(device, &local_tag_info);
 }
 
@@ -3998,7 +4002,7 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_DebugMarkerSetObjectNameEXT(
     uint32_t icd_index = 0;
     struct loader_device *dev;
     struct loader_icd_term *icd_term = loader_get_icd_and_device(device, &dev, &icd_index);
-    if (NULL == icd_term || NULL == dev || NULL == dev->loader_dispatch.extension_terminator_dispatch.DebugMarkerSetObjectNameEXT) {
+    if (NULL == icd_term || NULL == dev) {
         loader_log(NULL, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_VALIDATION_BIT, 0, "DebugMarkerSetObjectNameEXT: Invalid device handle");
         abort(); /* Intentionally fail so user can correct issue. */
     }
@@ -4017,6 +4021,10 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_DebugMarkerSetObjectNameEXT(
             }
         }
     }
+    // Exit early if the driver does not support the function - this can happen as a layer or the loader itself supports
+    // debug utils but the driver does not.
+    if (NULL == dev->loader_dispatch.extension_terminator_dispatch.DebugMarkerSetObjectNameEXT)
+        return VK_SUCCESS;
     return dev->loader_dispatch.extension_terminator_dispatch.DebugMarkerSetObjectNameEXT(device, &local_name_info);
 }
 
@@ -4552,7 +4560,7 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_SetDebugUtilsObjectNameEXT(
     uint32_t icd_index = 0;
     struct loader_device *dev;
     struct loader_icd_term *icd_term = loader_get_icd_and_device(device, &dev, &icd_index);
-    if (NULL == icd_term || NULL == dev || NULL == dev->loader_dispatch.extension_terminator_dispatch.SetDebugUtilsObjectNameEXT) {
+    if (NULL == icd_term || NULL == dev) {
         loader_log(NULL, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_VALIDATION_BIT, 0, "SetDebugUtilsObjectNameEXT: Invalid device handle");
         abort(); /* Intentionally fail so user can correct issue. */
     }
@@ -4571,6 +4579,10 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_SetDebugUtilsObjectNameEXT(
             }
         }
     }
+    // Exit early if the driver does not support the function - this can happen as a layer or the loader itself supports
+    // debug utils but the driver does not.
+    if (NULL == dev->loader_dispatch.extension_terminator_dispatch.SetDebugUtilsObjectNameEXT)
+        return VK_SUCCESS;
     return dev->loader_dispatch.extension_terminator_dispatch.SetDebugUtilsObjectNameEXT(device, &local_name_info);
 }
 
@@ -4604,7 +4616,7 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_SetDebugUtilsObjectTagEXT(
     uint32_t icd_index = 0;
     struct loader_device *dev;
     struct loader_icd_term *icd_term = loader_get_icd_and_device(device, &dev, &icd_index);
-    if (NULL == icd_term || NULL == dev || NULL == dev->loader_dispatch.extension_terminator_dispatch.SetDebugUtilsObjectTagEXT) {
+    if (NULL == icd_term || NULL == dev) {
         loader_log(NULL, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_VALIDATION_BIT, 0, "SetDebugUtilsObjectTagEXT: Invalid device handle");
         abort(); /* Intentionally fail so user can correct issue. */
     }
@@ -4623,6 +4635,10 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_SetDebugUtilsObjectTagEXT(
             }
         }
     }
+    // Exit early if the driver does not support the function - this can happen as a layer or the loader itself supports
+    // debug utils but the driver does not.
+    if (NULL == dev->loader_dispatch.extension_terminator_dispatch.SetDebugUtilsObjectTagEXT)
+        return VK_SUCCESS;
     return dev->loader_dispatch.extension_terminator_dispatch.SetDebugUtilsObjectTagEXT(device, &local_tag_info);
 }
 
diff --git a/scripts/loader_extension_generator.py b/scripts/loader_extension_generator.py
index ae91e60ef..d178544cf 100644
--- a/scripts/loader_extension_generator.py
+++ b/scripts/loader_extension_generator.py
@@ -1224,7 +1224,7 @@ class LoaderExtensionOutputGenerator(OutputGenerator):
                         funcs += '    uint32_t icd_index = 0;\n'
                         funcs += '    struct loader_device *dev;\n'
                         funcs += f'    struct loader_icd_term *icd_term = loader_get_icd_and_device({ ext_cmd.params[0].name}, &dev, &icd_index);\n'
-                        funcs += f'    if (NULL == icd_term || NULL == dev || NULL == dev->loader_dispatch.extension_terminator_dispatch.{ext_cmd.name[2:]}) {{\n'
+                        funcs += f'    if (NULL == icd_term || NULL == dev) {{\n'
                         funcs += f'        loader_log(NULL, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_VALIDATION_BIT, 0, "{ext_cmd.name[2:]}: Invalid device handle");\n'
                         funcs += '        abort(); /* Intentionally fail so user can correct issue. */\n'
                         funcs += '    }\n'
@@ -1243,6 +1243,9 @@ class LoaderExtensionOutputGenerator(OutputGenerator):
                         funcs += '            }\n'
                         funcs += '        }\n'
                         funcs += '    }\n'
+                        funcs += '    // Exit early if the driver does not support the function - this can happen as a layer or the loader itself supports\n'
+                        funcs += '    // debug utils but the driver does not.\n'
+                        funcs += f'    if (NULL == dev->loader_dispatch.extension_terminator_dispatch.{ext_cmd.name[2:]})\n        return VK_SUCCESS;\n'
                         dispatch = 'dev->loader_dispatch.'
                     else:
                         funcs += f'    struct loader_dev_dispatch_table *dispatch_table = loader_get_dev_dispatch({ext_cmd.params[0].name});\n'